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Tomoegawa Co., Ltd.

Tomoegawa Co., Ltd. Patent applications
Patent application numberTitlePublished
20120091668HEAT-RESISTANT SEAL MEMBER - To provide a means for achieving sufficient sealing performance even in the case of using a highly heat resistant clay film in a high temperature environment exceeding 600° C., minimizing deterioration thereof caused by structural change even in a high temperature environment exceeding 600° C. in the presence of water, and preventing decline in the function of the product caused by the elution of sodium. A member containing a clay film which contains aligned clay particles in the structure thereof and contains, among the clay particles and/or among clay particle layers, a substance decomposing at temperatures, exceeding 100° C. but not exceeding the temperature allowing the release, as water, of structural hydroxyl groups in the clay particles, wherein the member is to be employed in an environment of equal or higher temperatures than the decomposition temperature of the aforesaid substance.04-19-2012
20120003525SEPARATOR FOR AN ELECTRICITY STORAGE DEVICE AND METHOD OF MANUFACTURING SAME - The present invention provides a separator for an electricity storage device that is formed by superimposing two or more fiber layers, wherein at least one or more of the fiber layers is a synthetic fiber layer that contains synthetic fibers and a synthetic resin binding agent, and also provides a method of manufacturing the same. Moreover, the present invention provides a separator for an electricity storage device that contains thermoplastic synthetic fibers A, heat-resistant synthetic fibers B, natural fibers C, and a synthetic resin-based binding agent, and also provides a method of manufacturing the same.01-05-2012
20110206972POWER STORAGE DEVICE SEPARATOR - Provided is a power storage device separator that is realized in the form of a heat-resistant, solvent-resistant, and dimensionally stable thin film. Also provided is a power storage device separator that can be realized in the form of a thin film which has excellent ion permeability and low resistance, which makes short-circuiting between electrodes and self-discharging difficult to occur, and in addition, which has excellent durability even after long periods of use under high temperature environments in the presence of organic solvents and ionic solutions.08-25-2011
20110198765OPTICAL TRANSMISSION MEDIUM SHAPING METHOD, OPTICAL TRANSMISSION MEDIUM SHAPING APPARATUS, AND OPTICAL TRANSMISSION MEDIUM MANUFACTURING METHOD - An optical transmission medium shaping method and an optical transmission medium shaping apparatus can accurately adjust desire curvature radius without cracking the optical transmission medium. The optical transmission medium shaping method for bending an optical transmission medium using a transferring means and a noncontacting heating means, includes a transferring and heating process for heating part of the optical transmission medium by the noncontacting heating means while transferring the transferring means, and a bending process for bending the optical transmission medium.08-18-2011
20110198035ADHERING JIG FOR ADHESIVE CONNECTING MEMBER - An adhering jig for an adhesive connecting member is provided, in which the adhesive connecting member can be adhered without being broken even if it is twisted during connection of an optical fiber. The adhesive connecting member of the present invention has a tabular member having insertion holes fitting a shape of the optical connector, and an adhesive connecting member having a certain size. The adhesive connecting member has a strongly adhesive layer and non-adhesive layer, and the adhesive connecting member was arranged at a bottom of the insertion hole via the weakly adhesive layer, so that the non-adhesive layer is lower.08-18-2011
20110110630OPTICAL TRANSMISSION MEDIUM, FERRULE, OPTICAL TERMINAL CONNECTOR, OPTICAL STRUCTURE, AND OPTICAL EQUIPMENT - An optical transmission medium, a ferrule, an optical terminal connector, an optical structure, and an optical equipment have both optical terminal functions and the optical connector functions without the need to change component depending on application. The optical transmission medium has at least one end thereof that is an APC cut surface and a refractive index matching member is provided on the APC cut surface. The ferrule is characterized in that at least one end thereof is an APC polished surface and a refractive index matching member is provided on the APC polished surface. The optical terminal connector includes a ferrule which holds an optical transmission medium and an adapter into which the ferrule is inserted from one end thereof, at least one end of the optical transmission medium is an APC cut surface and a refractive index matching member is provided on the APC cut surface.05-12-2011
20100316912SEPARATOR FOR POWER STORAGE DEVICE - This invention is relates to a separator of a power storage device which is a laminate of a polyolefin porous membrane layer and a fiber layer comprising a solvent spun cellulose; and a separator of a power storage device, wherein the separator is a laminate of a polyolefin porous membrane layer and a fiber layer comprising a solvent spun cellulose, and the volume of a cavity part of the fiber layer is smaller than the volume of a resin part of the polyolefin porous membrane layer.12-16-2010
20100246011OPTICAL FILM - In a composition layering one layer on a transparent substrate, the present invention provides an optical film which can balance anti-glare function, high contrast, color reproducibility, and anti-glittering enough. The optical film in the present invention comprises a transparent substrate, and a resin layer layered on the transparent substrate, the resin layer including transparent resin fine particles and a radiation-curable resin composition, and having a fine rugged structure of an average inclination angle in a range of 0.8° to 3.0° on the top surface of the resin layer; a haze value which is in a range of 40% to 60%; and a transmitted image clarity which is measured by using an optical comb having width of 0.5 mm and is in a range of 5% to 35%.09-30-2010
20100239971TONER FOR ELECTROPHOTOGRAPHY AND PROCESS FOR PRODUCING THE SAME - A toner for electrophotography includes toner particles containing at least a binder resin and a colorant, to which strontium titanate and hydrophobic silica as external additives are admixed, wherein the strontium titanate has a BET specific surface area of 20-50 m09-23-2010
20100209836COLOR TONER FOR ELECTROPHOTOGRAPHY - A color toner for electrophotography comprises, at least, a binder resin, a colorant and an antistatic composition. The antistatic composition comprises as the main components: (A) at least one member selected from a compound containing an ether linkage(s) and/or ester linkage(s) and a (co)polymer containing an ether linkage(s) and/or ester linkage(s); and (B) a component obtained by treating a metal salt of an alkali or alkaline earth metal with a compound capable of adsorbing anions.08-19-2010
20100170076PRODUCTION METHOD FOR OPTICAL FIBER COIL - An optical fiber coil and a production method therefor reduce the likelihood of optical transmission loss due to stress or temperature changes at low cost. Plural single optical fibers are arranged in parallel and are integrally covered with a covering portion so as to form an optical fiber ribbon, and the optical fiber ribbon is wound into a coiled state.07-08-2010
20100143836ELECTROPHOTOGRAPHIC TONER - This invention provides a toner for a method for image formation by electrophotography, particularly a toner that, in a one-component development method, has stable fluidity and electrostatic properties for a long period of time, is free from image defects, and is also excellent in transferability and transfer efficiency. The toner for electrophotography comprises matrix toner particles and at least titanium oxide fine particles and fluidizer fine particles deposited on the surface of matrix toner particles. The titanium oxide fine particles are spherical and have an average primary particle diameter of 200 to 400 nm. The fluidizer fine particles have a specific surface area of 60 to 250 m06-10-2010
20100098991Gas Diffusion Electrode For Polymer Electrolyte Fuel Cell, Membrane-Electrode Assembly For Polymer Electrolyte Fuel Cell, Production Method Therefor, And Polymer Electrolyte Fuel Cell - One object of the present invention is to provide a gas diffusion electrode for a polymer electrolyte fuel cell, which has excellent water repellency for quickly supplying and removing a reaction gas, and conductivity for efficiently conducting generated electrical power, a membrane-electrode assembly for a polymer electrolyte fuel cell and a method for producing the same, and a polymer electrolyte fuel cell, and the present invention provides a gas diffusion electrode comprising a nonwoven fabric, a porous fluororesin, and a carbon material.04-22-2010
20100055594Toner for developing electrostatically charged images - Toner for developing electrostatically charged images contains at least a binder resin, a colorant and a charge control agent. The charge control agent is an aromatic compound generating at least sulfur dioxide and a butylphenol upon thermal decomposition by raising temperature from room temperature to 250° C. at 10° C./min; and is one of or a mixture of two or more of a substance having both an aromatic ring to which one or more tert-butyl groups are attached and an aromatic ring to which one or more sulfonyl groups are attached, a mixture comprising a substance having an aromatic ring to which one or more tert-butyl groups are attached and a substance having an aromatic ring to which one or more sulfonyl groups are attached, and a substance of a chemical structure including an aromatic ring to which both one or more tert-butyl groups and one or more sulfonyl groups are attached.03-04-2010
20100003459Optical laminated film - An optical layered film includes a transparent substrate on which a radiation curing resin layer containing translucent resin fine particles is layered, which has an internal haze value (X) and a total haze value (Y) satisfying Y>X, Y≦X+11, Y≦50 and X≧15, and has fine irregularity shapes on the outermost surface of the resin layer.01-07-2010
20090239037METHOD FOR PRODUCING CLAY THIN FILM AND CLAY THIN FILM - A method for producing a clay thin film, which is formed of clay alone or in combination with an additive and has a structure where oriented clay particles are laminated, the method including paste-making in which clay alone or in combination with an additive are dispersed in a dispersion medium formed of water, an organic solvent, or a mixed solvent of water and an organic solvent to prepare clay paste; coating in which a thin film is formed by coating the clay paste on a substrate; planarization in which the thin film is planarized; drying in which water, an organic solvent, or water and an organic solvent are removed from the thin film; and separation in which the thin film is separated from the substrate.09-24-2009
20090233083THIN FILM AND THIN FILM LAMINATE COMPRISING THE SAME - The object of the present invention is to provide a thin film which has excellent heat resistance and water resistance together with excellent flexibility, and a thin film laminate comprising the thin film, and the present invention provides a thin film comprising a heat-resistant fluid between layers comprising heat-resistant flakes.09-17-2009
20090181317TONER FOR DEVELOPING ELECTROSTATIC IMAGE AND PROCESS FOR PRODUCING THE SAME - Toner for developing an electrostatic image which hardly causes an offset phenomenon and a wrapping phenomenon and which excels in anti-fusing property, and the production process thereof is provided. The toner for developing an electrostatic image contains at least a binder resin and a colorant, in which the binder resin contains an amorphous resin and a crystalline resin, and an endothermal peak having an onset temperature of a starting point ranging from 100 to 150° C., an onset temperature of an end point ranging from 150 to 200° C., and a half value width ranging from 10 to 40° C. is present in a DSC curve while elevating the temperature measured by a differential scanning calorimeter of the toner. This toner can be produced by performing a heat-melt kneading at the temperature defined as T (° C.) having the range specified by the following formula: (T07-16-2009
20090162085Device for measuring electrostatic charge amount of toner and method for measuring distribution of electrostatic charge amount of toner - A device for measuring electrostatic charge amount of toner is provided. The device comprises a hollow toner suction port for sucking the toner from a toner substrate and a means for measuring electrostatic charge amount of the sucked toner. The toner suction port forms a hermetically sealed space with the toner substrate.06-25-2009
20090142023PRODUCTION METHOD AND PRODUCTION APPARATUS FOR OPTICAL CONNECTING PARTS - A production method for an optical connecting part including an optical transmission medium having an end surface provided with a refractive index matching member, includes a step for arranging a charging device in the vicinity of the optical transmission medium and the vicinity of a dielectric member. The method also includes a step for charging the optical transmission medium by the charging device, and includes a step for supplying the refractive index matching member to the end surface of the optical transmission medium.06-04-2009
20090141230Clay Thin Film Substrate, Clay Thin Film Substrate with Electrode, and Display Device Using the Same - A clay thin film substrate including a clay thin film having a structure, in which oriented clay particles are laminated; and at least a gas barrier inorganic layer which is laminated on at least one surface of the clay thin film.06-04-2009
20090136713Optical layered product - An optical layered product has a translucent substrate onto which a radiation-curable resin layer containing translucent resin microparticles is layered. The layered product has an internal haze value (X) and a total haze value (Y) satisfying Y>X, Y≦X+7, X≦15 and X≧1, and has microirregularities on the outermost surface of the resin layer, to provide a functional film capable of satisfying antiglaring, contrast enhancement and antidazzling in a balanced manner in a configuration having a translucent substrate on which a single layer is layered.05-28-2009
20090120326CLAY DISPERSION, METHOD FOR MANUFACTURING THE SAME AND CLAY THIN FILM - A clay dispersion, wherein an organically modified clay is dispersed in a polar organic solvent, and the clay dispersion is obtained by: dispersing a swelling clay in a liquid which includes water as a main component; adding organic onium ions to the liquid to cause ion-exchange between the organic onium ions and hydrophilic cations existing on the surface of the swelling clay to obtain an organically modified clay; removing the ion-exchanged hydrophilic cation to obtain the organically modified clay which is in a condition that water exists in the clay; and adding the organically modified clay from which the ion-exchanged hydrophilic cation is removed to an polar organic solvent.05-14-2009
20090111041ELECTROPHOTOGRAPHIC TONER - The purpose of the present invention is to provide an electrographic toner, which is used for an image forming method of electrophotography, and particularly, used for mono-component development. The toner has a stable charge property, can form a toner layer on a developing sleeve wherein the thickness thereof is suitable and uniform, can achieve long-life property while a high image density is maintained (an image having a high image density is printed even when a large number of printings are conducted in succession), and achieves small toner consumption. In order to achieve this, an electrophotographic toner is proposed wherein at least inorganic particles, conductive metal oxide fine particles and carbon black are adhered to the surface of matrix toner particles, and the inorganic particles are surface-treated with cyclic silazane and have the specific surface area of 100 to 175 m04-30-2009
20090059408Optical layered product - An optical layered product comprises a translucent substrate onto which a radiation-curable resin layer containing translucent resin microparticles is layered. The layered product has an internal haze value (X) and a total haze value (Y) satisfying Y>X, Y≧X+7, X≦15 and X≧03-05-2009
20080286456PROCESS FOR PRODUCING OPTICAL CONNECTOR, APPARATUS FOR PRODUCING THE SAME, AND PROCESS FOR FORMING POLYMER COATING - The present invention provides a process for producing an optical connector, an apparatus for producing the same, and a process for forming a polymer coating film on an end face of a fibrous dielectric, which can dispose a refractive index adjuster only onto an end face of an optical transmitting medium with excellent reproducibility. Such a process includes bringing an end surface of the optical transmitting medium close to an end face of a liquid refractive index adjuster, while charging at least one of the optical transmitting medium and the liquid refractive index adjuster, thereby adhering the liquid refractive index adjuster to the end face of the optical transmitting medium, and thereafter solidifying the adhered liquid refractive index adjuster to obtain the refractive index adjuster.11-20-2008
20080241508Optical layered product - An optical layered product has a translucent substrate having at least an optically functional layer, containing translucent microparticles, provided directly or via another layer onto one or both sides of the substrate. The standard deviation of area dispersion variability of the translucent microparticles in the optically functional layer is in the range of 0.04 to 0.20.10-02-2008

Patent applications by Tomoegawa Co., Ltd.